diff --git a/sys/kern/uipc_usrreq.c b/sys/kern/uipc_usrreq.c
index 4db124f..7fe68ac 100644
--- a/sys/kern/uipc_usrreq.c
+++ b/sys/kern/uipc_usrreq.c
@@ -448,6 +448,42 @@ uipc_attach(struct socket *so, int proto, struct thread *td)
 	return (0);
 }
 
+void uipc_prepare_reclaim(struct vnode *vp);
+
+void
+uipc_prepare_reclaim(struct vnode *vp)
+{
+	struct socket *so;
+	struct unpcb *unp;
+	int active;
+
+	ASSERT_VOP_ELOCKED(vp, "uipc_prepare_reclaim");
+	ASSERT_VI_LOCKED(vp, "uipc_prepare_reclaim");
+	KASSERT(vp->v_type == VSOCK,
+	    ("uipc_prepare_reclaim: vp->v_type != VSOCK"));
+
+	VI_UNLOCK(vp);
+	UNP_LINK_RLOCK();
+	active = 0;
+	if ((so = vp->v_socket) == NULL)
+		goto done;
+	if ((unp = sotounpcb(so)) != NULL) {
+		UNP_PCB_LOCK(unp);
+		if (unp->unp_vnode != NULL) {
+			KASSERT(unp->unp_vnode == vp,
+			    ("uipc_prepare_reclaim: vp != unp->unp_vnode"));
+			unp->unp_vnode = NULL;
+			active = 1;
+		}
+		UNP_PCB_UNLOCK(unp);
+	}
+done:
+	UNP_LINK_RUNLOCK();
+	if (active)
+		vunref(vp);
+	VI_LOCK(vp);
+}
+
 static int
 uipc_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
 {
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c
index 544b1cc..ed5b6ec 100644
--- a/sys/kern/vfs_subr.c
+++ b/sys/kern/vfs_subr.c
@@ -2445,6 +2445,9 @@ static int busyprt = 0;		/* print out busy vnodes */
 SYSCTL_INT(_debug, OID_AUTO, busyprt, CTLFLAG_RW, &busyprt, 0, "Print out busy vnodes");
 #endif
 
+struct vnode;
+void uipc_prepare_reclaim(struct vnode *vp);
+
 int
 vflush(struct mount *mp, int rootrefs, int flags, struct thread *td)
 {
@@ -2519,6 +2522,8 @@ loop:
 			VNASSERT(vp->v_usecount == 0 ||
 			    (vp->v_type != VCHR && vp->v_type != VBLK), vp,
 			    ("device VNODE %p is FORCECLOSED", vp));
+			if (vp->v_type == VSOCK)
+				uipc_prepare_reclaim(vp);
 			vgonel(vp);
 		} else {
 			busy++;